JPH0297831U - - Google Patents

Info

Publication number
JPH0297831U
JPH0297831U JP604289U JP604289U JPH0297831U JP H0297831 U JPH0297831 U JP H0297831U JP 604289 U JP604289 U JP 604289U JP 604289 U JP604289 U JP 604289U JP H0297831 U JPH0297831 U JP H0297831U
Authority
JP
Japan
Prior art keywords
voltage
motor
reference voltage
circuit
current
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP604289U
Other languages
English (en)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP604289U priority Critical patent/JPH0297831U/ja
Publication of JPH0297831U publication Critical patent/JPH0297831U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Generators And Motors (AREA)

Description

【図面の簡単な説明】
第1図は本考案の一実施例を示す電気的構成図
、第2図は同実施例の作用説明用の電圧波形図、
第3図は従来例を示す第1図相当図である。 図面中、21は変換器、23は変換回路、28
は電圧発生回路、29は可変抵抗器、30はコン
デンサ、32はタイマ回路、36は基準電圧出力
端子、37は比較回路、38は積分回路を示す。

Claims (1)

    【実用新案登録請求の範囲】
  1. 電動機に流れる負荷電流を検出する変流器と、
    この変流器による検出電流を直流電圧に変換する
    変換回路と、基準電圧を発生するように設けられ
    前記電動機始動後の所定時間は基準電圧レベルを
    高めた状態に保持する電圧発生回路と、前記変換
    回路の出力電圧が前記電圧発生回路からの基準電
    圧を越えたときに出力信号を発生する比較回路と
    を具備してなる電動機の過負荷電流検出装置。
JP604289U 1989-01-24 1989-01-24 Pending JPH0297831U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP604289U JPH0297831U (ja) 1989-01-24 1989-01-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP604289U JPH0297831U (ja) 1989-01-24 1989-01-24

Publications (1)

Publication Number Publication Date
JPH0297831U true JPH0297831U (ja) 1990-08-03

Family

ID=31209943

Family Applications (1)

Application Number Title Priority Date Filing Date
JP604289U Pending JPH0297831U (ja) 1989-01-24 1989-01-24

Country Status (1)

Country Link
JP (1) JPH0297831U (ja)

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